"When I make videos, I almost always use Ogg to encode the
audio. Storing the audio in Ogg saves space on my machine without
sacrificing quality. However, I invariably need to loop,
concatenate, or change the audio in some way, which can be
difficult. For many of these tasks I turn to the OGMtools suite to
make the process easier.
"The OGMtools suite contains several utilities to manage Ogg
Media Stream (OGM) files. The tools were designed to be used along
with video ripping software to encode DVD movies, but they can be
used for much more..."